Method for seamlessly splicing based on three lenses and area array detectors

Abstract

A seamlessly splicing method based on three lenses and area array detectors, includes: imaging a field of view simultaneously using the three lenses; arranging three area array detectors at corresponding focal plane positions of each of the three lenses to obtain imaging images, respectively; and generating a complete seamlessly imaging result of the field of view by pairwise splicing the imaging images obtained from adjacent area array detectors, through staggered splicing of the three lens and/or the area array detectors.

The invention claimed is: 
     
       1. A seamlessly splicing method based on three lenses and area array detectors, comprising:
 imaging a field of view simultaneously using the three lenses; 
 arranging three area array detectors at corresponding focal plane positions of each of the three lenses to obtain imaging images, respectively; 
 generating a complete seamlessly imaging result of the field of view by pairwise splicing the imaging images obtained from adjacent area array detectors, through staggered splicing of the three lenses and/or the area array detectors, 
 wherein row or column pixel elements of the imaging images of the adjacent area array detectors are overlapped by an overlapping width of not less than one pixel, 
 wherein each area array detector comprises a plurality of area array detection units arranged in a checkerboard pattern having a predetermined spacing, wherein, a total number of area array detection units in each area array detector is m×n; where m is a number of area array detection unit in each row and n is a number of area array detection unit in each column, 
 wherein adjacent lenses are arranged at an angle in horizontal direction that is parallel to corresponding area array detectors; and the imaging images of the adjacent area array detectors are pairwise spliced by splicing lens field of view, so that the row or column pixel elements of the adjacent area array detectors are overlapped, 
 wherein the adjacent lenses form a misaligned overlapping on an image plane of the corresponding area array detector, and a misaligned overlap width is a difference in image height formed by the adjacent lenses. 
 
     
     
       2. The method of  claim 1 , wherein the three lenses are arranged in parallel, along a first direction; and the adjacent area array detectors are translated by a specific distance to realize the overlapping of the row or column pixel elements of the adjacent area array detectors. 
     
     
       3. The method of  claim 2 , wherein a row direction of each area array detector is the first direction;
 the adjacent area array detectors are translated by L−a to achieve the pairwise splicing of the imaging images; 
 wherein, L is a spacing between adjacent area array detection units in the first direction, and a is the overlapping width of adjacent area array detectors in the first direction. 
 
     
     
       4. The method of  claim 1 , wherein each of the area array detection units comprises a plurality of pixels arranged in a matrix, and a total number of pixels is M×N;
 where M is the number of pixel in each row, and N is the number of pixel in each column. 
 
     
     
       5. The method of  claim 1 , wherein, for a lens without a rotating angle, the image height is represented by y=f′×tan w, where w is an incident angle of parallel light, y is the image height, and f′ is a focal length of the lens. 
     
     
       6. The method of  claim 1 , wherein, for the adjacent lenses arranged at the angle in the horizontal direction of the corresponding area array detector, the image height is represented by y′=f′×tan(w−φ), where w is an incident angle of parallel light, φ is the angle, y′ is the image height, and f′ is a focal length of the lens.